.flex-1 {
  display: flex;
  flex-direction: row;
  /* flex-wrap: nowrap; */
  flex-wrap: wrap;
  /* flex-wrap: wrap-reverse; */

  background-color: brown;
  padding: 20px;
}
.flex-1 .item {
  width: 100px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
}

.flex-2 {
  display: flex;
  flex-direction: column;
  background-color: brown;
  padding: 20px;
}
.flex-2 .item {
  width: 100px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
}


.flex-3 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: wrap;
  /* justify-content: flex-start; */
  /* justify-content: flex-end; */
  /* justify-content: center; */
  /* justify-content: space-between; */
  justify-content: space-around;
}
.flex-3 .item {
  width: 100px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
}

.flex-4 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: wrap;
  height: 200px;
  /* align-items: flex-start; */
  /* align-items: flex-end; */
  align-items: center;
  /* align-items: baseline; */
  /* align-items: stretch; */

  /* align-content: flex-start; */
  align-content: flex-end;
  /* align-content: center; */
  /* align-content: space-between; */
  /* align-content: space-around; */
}
.flex-4 .item {
  width: 100px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
}

.flex-5 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: wrap;
  height: 200px;
}
.flex-5 .item {
  width: 100px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
}

.flex-5 .item-5  {
  order: -1;
}
.flex-5 .item-4  {
  order: 1;
}
.flex-5 .item-6  {
  order: 2;
}
.flex-5 .item-3  {
  order: 3;
}
.flex-5 .item-1  {
  order: 4;
}
.flex-5 .item-2  {
  order: 5;
}

.flex-6 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: wrap;
  height: 200px;
}
.flex-6 .item {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-grow: 0;
}
.flex-6 .item-3 {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-grow: 1;
  background-color: chartreuse;
}

.flex-7 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: nowrap;
  height: 200px;
}
.flex-7 .item {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-shrink: 0;
}
.flex-7 .item-3 {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-shrink: 1;
  background-color: chartreuse;
}

.flex-8 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: nowrap;
  height: 200px;
}
.flex-8 .item {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-grow: 1;
  flex-shrink: 1;
}
.flex-8 .item-3 {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-grow: 0;
  flex-shrink: 0;
  flex-basis: 90px;
  /* flex: 0 0 90px; */
  background-color: chartreuse;
}

.flex-9 {
  display: flex;
  flex-direction: row;
  background-color: brown;
  flex-wrap: nowrap;
  height: 200px;
  align-items: top;
}
.flex-9 .item {
  width: 80px;
  height: 80px;
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  flex-grow: 1;
  flex-shrink: 1;
}
.flex-9 .item-3 {
  background: cadetblue;
  border: 2px solid black;
  overflow: hidden;
  background-color: chartreuse;
  align-self: center;
}

.flex-20 {
  background-color: brown;
  display: flex;
  flex-direction: column;
  height: 130px;
  justify-content: center;
  align-items: center;
}
.flex-20 .item-1 {
  width: 180px;
  height: 80px;
  background: cadetblue;
}